CN103260187B - The method of research content presynchronization, equipment and system - Google Patents
The method of research content presynchronization, equipment and system Download PDFInfo
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- CN103260187B CN103260187B CN201210038212.XA CN201210038212A CN103260187B CN 103260187 B CN103260187 B CN 103260187B CN 201210038212 A CN201210038212 A CN 201210038212A CN 103260187 B CN103260187 B CN 103260187B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/04—Protocols for data compression, e.g. ROHC
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/565—Conversion or adaptation of application format or content
- H04L67/5651—Reducing the amount or size of exchanged application data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/045—Interfaces between hierarchically different network devices between access point and backbone network device
Abstract
The invention discloses a kind of method of research content presynchronization, the network equipment, from all index values that self stores, chooses the buzz index value that the frequency of occurrences is higher; From managed base station, confirm other base station of the same type with the base station having received this buzz index value, and when link idle, buzz index value and data corresponding to buzz index value are sent to this base station.The method of the research content presynchronization that the embodiment of the present invention provides, popular index value can be prejudged out, and the base station that this index value may be addressed to, and in advance buzz index value is sent to corresponding base station when link idle, thus transmission delay when decreasing busy, compression ratio when improving busy, but also can avoid causing synchrodata to be lost because link is busy.
Description
Technical field
The present invention relates to communication technical field, be specifically related to research content pre-synchronization method, equipment and system.
Background technology
Along with the bandwidth pressure that increase and the data service development of operation cost pressure bring, optimize the hot issue that the transfer of data Cheng Liao operator on back haul link (Backhaul) pays close attention to.The transfer of data optimized in prior art on Backhaul has two kinds of modes, and one is to the dilatation of Backhaul physics to increase transfer resource, and another is the data of transmission on compression Backhaul.Physics dilatation way can increase Backhaul bearing capacity, but adds cost, and by contrast, data compression is a kind of effective means optimizing transfer of data on Backhaul.Research content is a kind of typical fine-grained data compression method, is applied in wireless network, can alleviates the pressure of backhaul greatly.
The method of research content is: cut into slices to load (Payload) data on Backhaul, identify the repeating data section in Payload, replace this repeating data to reduce the data volume of transmission with less index value (index).When content coding technology is applied to wireless network, need between the network equipment and base station, dispose a pair peer device, this is responsible for carrying out compression/de-compression operation to the data of transmission on backhaul to peer device; The network equipment comprises: radio network controller (RNC, RadioNetworkController) and gateway (S-GW, ServeringGateway) etc.After the network equipment receives data, first data are cut into slices, and the data after section are carried out to hash and calculated index value index, the network equipment stores this index and initial data and corresponding relation thereof, and be sent to base station by the index replacement initial data that this data volume is less, after base station receives index, index is replaced back initial data, achieve the data compression on backhaul.
In order to make base station the index received can be replaced with initial data, also need to store this index and initial data and corresponding relation thereof in base station, generally, RNC or S-GW needs the index that oneself stored and initial data to be synchronized to opposite equip..In wireless network, RNC or S-GW and base station are the relations of one-to-many, a lot of base station is had to obtain identical data from RNC or S-GW, if there is network congestion in synchronizing process, during the situations such as link is busy, synchronization delay will be caused longer, or synchrodata is lost, and causes base station cannot correct decompressed.
Summary of the invention
The embodiment of the present invention provides a kind of method of research content presynchronization, can by index value and data presynchronization between the network equipment and multiple base station corresponding to described index value, reduce link busy time synchronization delayed time, compression ratio when improving busy.The embodiment of the present invention additionally provides corresponding equipment and system.
A method for research content presynchronization, comprising:
The network equipment from self store for all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value;
From managed base station, confirm all base stations having received described buzz index value and data corresponding to described buzz index value;
For each base station in described all base stations, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS;
When the described network equipment is idle to the data link of the base station of in described target BS, described buzz index value and data corresponding to described buzz index value are sent to this base station.
A method for research content presynchronization, comprising:
The network equipment from self store for all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value;
From managed base station, confirm all base stations having received described buzz index value and data corresponding to described buzz index value;
For each base station in described all base stations, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS;
Indication information is sent at least one in described all base stations, described indication information carries the information of described target BS, to make the base station receiving described indication information, time idle to the data link of the base station of in described target BS in the described base station receiving described indication information, described buzz index value and data corresponding to described buzz index value are sent to this base station.
A method for research content presynchronization, comprising:
Base station receives the index value and the data corresponding with described index value that are used for research content, and indication information, and described indication information carries the information of target BS;
Time idle to the data link of the base station of in described target BS in described base station, described index value and data corresponding to described index value are sent to this base station.
A kind of network equipment, comprising:
First selected cell, for store from self in all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value;
First confirmation unit, for from managed base station, confirms to have received all base stations of buzz index value that described first selected cell obtains and data corresponding to described buzz index value;
First query unit, for each base station in all base stations for described first confirmation unit confirmation, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS;
First transmitting element, when the data link for a base station in the target BS that inquires to described first query unit at the described network equipment is idle, sends to this base station by described buzz index value and data corresponding to described buzz index value.
A kind of network equipment, comprising:
Second selected cell, for store from self in all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value;
Second confirmation unit, for from managed base station, confirms to have received all base stations of buzz index value that described second selected cell obtains and data corresponding to described buzz index value;
Second query unit, for each base station in all base stations for described second confirmation unit confirmation, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS;
Second transmitting element, indication information is sent at least one in all base stations to described second confirmation unit confirmation, described indication information carries the information of the target BS that described second query unit inquires, to make the base station receiving described indication information, time idle to the data link of the base station of in described target BS in the described base station receiving described indication information, described buzz index value and data corresponding to described buzz index value are sent to this base station.
A kind of base station, comprising:
Receiving element, for receiving index value for research content and the data corresponding with described index value, and indication information, described indication information carries the information of described target BS;
3rd transmitting element, for time idle to the data link of the base station of in described target BS in described base station, the index value receive described receiving element and data corresponding to described index value send to this base station.
A kind of research content presynchronization system, comprise: the network equipment and at least one base station, the described network equipment is used for, from self store for all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value; From at least one base station described, confirm to have received all base stations of buzz index value that described first selected cell obtains and data corresponding to described buzz index value; For each base station in described all base stations, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS; When the data link of a base station in the target BS that the described network equipment inquires to described first query unit is idle, described buzz index value and data corresponding to described buzz index value are sent to this base station;
Described base station, the data that buzz index value and described buzz index value for receiving the transmission of the described network equipment are corresponding.
The embodiment of the present invention is by above technical scheme, and the network equipment, from all index values that self stores, chooses the buzz index value that the frequency of occurrences is higher; From managed base station, confirm other base station of the same type with the base station having received this buzz index value, and when link idle, buzz index value and data corresponding to buzz index value are sent to this base station.With when needing data in prior art just synchronized transmission index value compared with corresponding data, the method of the research content presynchronization that the embodiment of the present invention provides, popular index value can be prejudged out, and the base station that this index value may be addressed to, and in advance buzz index value is sent to corresponding base station when link idle, thus transmission delay when decreasing busy, compression ratio when improving busy, but also can avoid causing synchrodata to be lost because link is busy.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram in the embodiment of the present invention;
Fig. 2 is an embodiment schematic diagram of method in the embodiment of the present invention;
Fig. 3 is another embodiment schematic diagram of method in the embodiment of the present invention;
Fig. 4 is another embodiment schematic diagram of method in the embodiment of the present invention;
Fig. 5 is an embodiment schematic diagram of the network equipment in the embodiment of the present invention;
Fig. 6 is another embodiment schematic diagram of the network equipment in the embodiment of the present invention;
Fig. 7 is another embodiment schematic diagram of the network equipment in the embodiment of the present invention;
Fig. 8 is another embodiment schematic diagram of the network equipment in the embodiment of the present invention;
Fig. 9 is another embodiment schematic diagram of the network equipment in the embodiment of the present invention;
Figure 10 is another embodiment schematic diagram of the network equipment in the embodiment of the present invention;
Figure 11 is another embodiment schematic diagram of the network equipment in the embodiment of the present invention;
Figure 12 is another embodiment schematic diagram of the network equipment in the embodiment of the present invention;
Figure 13 is another embodiment schematic diagram of the network equipment in the embodiment of the present invention;
Figure 14 is an embodiment schematic diagram of base station in the embodiment of the present invention;
Figure 15 is another embodiment schematic diagram of base station in the embodiment of the present invention;
Figure 16 A is an embodiment schematic diagram of present system;
Figure 16 B is another embodiment schematic diagram of present system.
Embodiment
The embodiment of the present invention provides a kind of method of research content presynchronization, can by index value and data presynchronization between the network equipment and multiple base station corresponding to described index value, reduce link busy time synchronization delayed time, compression ratio when improving busy.The embodiment of the present invention additionally provides corresponding equipment and system.Below be described in detail respectively.
In the embodiment of the present invention, the network equipment refers to radio network controller (RNC, RadioNetworkController), gateway (S-GW, and packet data network gateway (P-GW, PacketDataNetworkGateway) ServeringGateway).
Consult Fig. 1, Fig. 1 is that RNC is described for the network equipment, and there is three types the base station under RNC controls, is respectively first kind base station, Second Type base station and the 3rd type of base station.Multiple base station is had in the base station circle of each type.When behind the base station 100 during a certain index value and data corresponding to described index value send to first kind base station to enclose by RNC, RNC finds that the number of times that this index value repeats has exceeded preset threshold value, at this moment, RNC just can when RNC be to any link idle in the circle of first kind base station, other base stations in sending to first kind base station to enclose this index value and data syn-chronization corresponding to this index value except base station 100.Certainly, also RNC other base station informations in the circle of first kind base station except base station 100 can be sent to base station 100, other base stations in sending to first kind base station to enclose data syn-chronization corresponding to this index value and this index value by base station 100.Second Type base station circle encloses identical with the pre-synchronization method in the 3rd type of base station circle with first kind base station, is not described in detail at this.
Consult Fig. 2, from the angle of the network equipment, an embodiment of the method for the research content presynchronization that the embodiment of the present invention provides comprises:
101, the network equipment from self store for all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value;
In fact mention in the present embodiment first preset thresholding is exactly the threshold value preset, and as 10,20 etc., can adjust according to the network condition of the quantity of current index value or reality.
Research content is a kind of data compression method, the network equipment in the embodiment of the present invention is described for RNC, after RNC receives data, according to data content, data are cut into slices, be several little data by larger data slicer, carry out hash calculating to the data after section, the process that hash calculates is exactly the data after using less index value to replace section; For example, the data of a 256kbits, these data are cut to 4, every a slice is 64kbits, from hash table, find index value corresponding to every a slice data, for identical data, corresponding index value is unique, space shared by index value is very little, and the index value as the data of 64kbits may only need the space taking 2bits.
After data determine corresponding index value, the index value stored in this index value and internal memory is contrasted one by one, check whether this index value exists, if search this index value of rear discovery to exist, then only need to send index value to base station, if search this index value of rear discovery not exist, so by this index value stored in internal memory, by slice of data corresponding for this index value stored in hard disk, by the base station that this slice of data and corresponding index value synchronized transmission will send to these data, base station is enable to store this index value and corresponding slice of data, each base station first time receives a certain data and synchronously will receive these data index value corresponding with these data, follow-up like this when receiving only index value, just can according to the corresponding relation of the data stored before and index value, the index value received is replaced with corresponding data.
The number of times repeated when index value is prescribed a time limit more than the first preset gate, described index value will select and be used as buzz index value by RNC, before choosing described buzz index value, RNC will add up the number of times that in described all index values, each index value occurs in the described network equipment, and the title of the base station that each index value is sent to described in record; The base station name namely sent for the data of data corresponding to each index value, each index value and each index value and correspondence thereof associates and stores, and adds up to the number of times that each index value repeats; As by index value 1, as described in the data of index value 1 correspondence and index value 1 as described in having received with as described in the base station name of data of index value 1 correspondence associate and store; And the number of times that index value 1 repeats is added up, the number of times repeated when index value 1 is prescribed a time limit more than the first preset gate, and the network equipment will choose this index value 1 as buzz index value.
As, when index value 1 first time occurs, index value 1 described in corresponding stored, the base station of the data of described index value 1 correspondence and described index value 1 and the transmission of corresponding data syn-chronization; When described index value 1 repeats, when the data of described correspondence are when sending to the described base station identical with when occurring for the first time, only need send described index value 1 to this base station, 1 is added to the number of times that index value 1 repeats, when the data of described index value 1 correspondence are when sending to another base station, the data of synchronized transmission index value 1 and index value 1 correspondence give another base station described, and by the data of described index value 1, described index value 1 correspondence and received described index value 1 and associate with the base station name of the data of described index value 1 correspondence and store.
102, from managed base station, all base stations having received described buzz index value and data corresponding to described buzz index value are confirmed.
As can be seen from Figure 1, a RNC multiple base station good at managing, the base station of same RNC management all can obtain data from RNC, the data that some base station obtains have a large amount of repetitions, especially for hot data, how RNC determines which data is hot datas, presynchronization is needed to send, which data is not hot data, presynchronization is not needed to send, in the embodiment of the present invention, determine according to the number of times that index value repeats, if the first preset threshold is 10 times, that is, when index value 1 repeats after more than 10 times, just think more than the first preset threshold, after index value 1 is more than the first preset thresholding, each index value 1 may be send to same base station, also may be send to different base stations, during because sending to base station indices to be worth 1 for the first time, want the data of synchronized transmission index value 1 correspondence, so can determine all send to give which base station more than the index value 1 of the first preset threshold, also just confirmed index value and with index value corresponding data synchronized transmission to all base stations, a response received can be sent to RNC after base station receives the data of index value 1 and index value 1 correspondence, therefore, RNC just determines all base stations of the data having received described index value 1 and described index value 1 correspondence.
For the description of epimere, can be understood as following table 1:
Table 1: index value, data, base station corresponding stored table
As can be seen from Table 1, index value 1 and initial data 1 correspondence send to the first base station and the second base station, index value 2 and initial data 2 also correspondence send to the first base station and the second base station.
Consult table 1, when the occurrence number of the index value 1 in table 1 is more than 10 times, so confirm that all base stations having received index value 1 and initial data 1 comprise the first base station and the second base station.
103, for each base station in described all base stations, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS.
Base station is before presynchronization sends buzz index value and data corresponding to described buzz index value, base station classification chart can be set up for all base stations of management, base station name identical for described type is associated and adds in the classification chart of described base station, RNC has several scheme to base station classification, can classify according to the rule pre-established: as:
Can divide according to the region at place, base station, as business district, financial district, the information area, residential quarter etc.;
Can adaptive classification, the method for adaptive classification is the user data obtaining each base station, resolves by deep packet the keyword that (DPI, DeepPacketInspection) parses the user data of each base station; Identical keyword will be included, and the number of described identical keyword classifies as the identical base station of type more than the base station of a preset value; Identical keyword described in the present embodiment refers to identical, close or that type is identical keyword, such as first keyword is classified, " financial class " " info class " " house class " etc. can be divided into, by the keyword relevant to financial class, as " security " " stock " " investment " etc. is grouped into financial class, keyword such as " board " " data " " pulse " etc. relevant in information are grouped into info class, the vocabulary of " diet " " shopping " " house " etc. is grouped into life kind; The keyword of identical type will be included, and the number of the keyword of described identical type classifies as the identical base station of type more than the base station of a preset value; The keyword of a large amount of house class is had in keyword as the user data of the first base station and the second base station, and the keyword of the type has exceeded a preset value, then this first base station and the second base station are classified as the identical base station of type, the said preset value in this place is exactly a numerical value, as 50,60 etc., when the base station of keyword more than 60 of financial class has two, so just these two base stations can be classified as the base station that type is identical.
Another sorting technique is: add up the number of times that in described all index values, each index value occurs in each managed base station, the number of times occurred in same base station by described same index value, more than the base station of the second preset thresholding, is classified as the base station that type is identical, second index value is also a numerical value, for example, when an index value has occurred 5 times in the first base station, 6 times have been occurred in the 3rd base station, 6 times have been occurred in the 4th base station, 8 times have been occurred in the 6th base station, when second preset gate is limited to 4, so base station of the same type just can be thought in these 4 base stations, another index value has occurred 5 times in the 5th base station, 6 times have been occurred in the second base station, 6 times have been occurred in the 7th base station, 8 times have been occurred in the 8th base station, so these four base stations are exactly the base station of another type, classify in base station for this mode, can be represented by following table 2:
Table 2: base station classification chart
| Type | Base station |
| Class1 | First base station, the 6th base station, the 3rd base station, the 4th base station |
| Type 2 | 5th base station, the second base station, the 7th base station, the 8th base station |
| ...... | ...... |
The all base stations confirmed in step 102 comprise the first base station and the second base station, because the first base station is not identical with the type of the second base station, inquire about the base station classification chart 2 set up in advance, determine other base stations identical with the first base station type and other base stations identical with the second base station type, associative list 2 is known, and other base stations of the same type with the first base station comprise the 3rd base station, the 4th base station and the 6th base station; Other base stations of the same type with the second base station comprise the 5th base station, the 7th base station and the 8th base station.
3rd base station does not appear at the position of table 1 manipulative indexing value 1 and initial data 1 to the 8th base station, then illustrate the 3rd base station also do not receive index value 1 and initial data 1 to the 8th base station, then using the 3rd base station to the 8th base station as target BS.
104, when the described network equipment is idle to the data link of the base station of in described target BS, described buzz index value and data corresponding to described buzz index value are sent to this base station.
When inquiring target BS in step 103, these target BS can be predicted and also can receive buzz index value and data corresponding to buzz index value, when data link between RNC to described target BS is idle, just in advance buzz index value and data corresponding to buzz index value can be sent to target BS, in conjunction with table 1 above-mentioned and table 2, base station of the same type when inquiring the 3rd base station to the 8th base station and the first base station and the second base station, RNC sends index value 1 and initial data 1 to the 8th base station synchronization also to the 3rd base station, so just can when respective link idle, send to the 3rd base station to the 8th base station index value 1 and initial data 1 presynchronization, when avoiding to send index value 1 and initial data 1 to the 3rd base station to the 8th base station, run into link busy, initial data 1 is caused to be lost, cause index value 1 cannot decompress in base station side.Before sending index value 1 and initial data 1, RNC first detects the data volume size from the described network equipment to the data link of described target BS, when data volume on described link lower than one preset threshold value time, determine that described link is in idle condition; When link is in idle condition, send buzz index value and data corresponding to buzz index value immediately to the base station of this link idle, which link idle just first presynchronization can send to the base station of link idle, need not send simultaneously.
In the embodiment of the present invention, the network equipment, from all index values that self stores, chooses the buzz index value that the frequency of occurrences is higher; From managed base station, confirm other base station of the same type with the base station having received this buzz index value, and when link idle, buzz index value and data corresponding to buzz index value are sent to this base station.With when needing data in prior art just synchronized transmission index value compared with corresponding data, the method of the research content presynchronization that the embodiment of the present invention provides, popular index value can be prejudged out, and the base station that this index value may be addressed to, and in advance buzz index value is sent to corresponding base station when link idle, thus transmission delay when decreasing busy, compression ratio when improving busy, but also can avoid causing synchrodata to be lost because link is busy.
Consult Fig. 3, from the angle of the network equipment, another embodiment of the method for the research content presynchronization that the embodiment of the present invention provides comprises:
201, the network equipment from self store for all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value.
Step 101 in the embodiment that this step is corresponding with Fig. 2 is identical, is no longer described in detail at this.
202, from managed base station, all base stations having received described buzz index value and data corresponding to described buzz index value are confirmed.
Step 102 in the embodiment that this step is corresponding with Fig. 2 is identical, is no longer described in detail at this.
203, for each base station in described all base stations, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS.
Step 103 in the embodiment that this step is corresponding with Fig. 2 is identical, is no longer described in detail at this.
204, indication information is sent at least one in described all base stations, described indication information carries the information of described target BS, to make the base station receiving described indication information, time idle to the data link of the base station of in described target BS in the described base station receiving described indication information, described buzz index value and data corresponding to described buzz index value are sent to this base station.
In the embodiment that Fig. 2 is corresponding, by the network equipment, the presynchronization done as RNC sends buzz index value and data corresponding to buzz index value, in the present embodiment, RNC does not do presynchronization and sends, but send indication information to confirm receive in the base station of buzz index value and data corresponding to buzz index value at least one, indication information carries the information of the target BS of inquiry in the corresponding step 102 of Fig. 2 simultaneously, to make the base station receiving described indication information, time idle to the data link of the base station of in described target BS in the described base station receiving described indication information, described buzz index value and data corresponding to described buzz index value are sent to this base station.
As sent indication information to the first base station in table 1, the information of three base stations to the 8th base station is carried in indication information, the instruction of the first base station information as indicated, by index value 1 and initial data 1 in the first base station and the 3rd base station, the first base station and the 4th base station ... when any one data link between the first base station to the 8th base station is idle, index value 1 and initial data 1 presynchronization are sent to the base station of link idle.
In the embodiment of the present invention, the embodiment of the present invention is by above technical scheme, and the network equipment, from all index values that self stores, chooses the buzz index value that the frequency of occurrences is higher; From managed base station, confirm other base station of the same type with the base station having received this buzz index value, and when link idle, buzz index value and data corresponding to buzz index value are sent to this base station.With when needing data in prior art just synchronized transmission index value compared with corresponding data, the method of the research content presynchronization that the embodiment of the present invention provides, popular index value can be prejudged out, and the base station that this index value may be addressed to, and in advance buzz index value is sent to corresponding base station when link idle, thus transmission delay when decreasing busy, compression ratio when improving busy, but also can avoid causing synchrodata to be lost because link is busy.
Consult Fig. 4, from the angle of base station, another embodiment of the method for the research content presynchronization that the embodiment of the present invention provides comprises:
301, base station receives the index value and the data corresponding with described index value that are used for research content, and indication information, and described indication information carries the information of described target BS.
After base station receives index value and the data corresponding with described index value, meeting corresponding stored buzz index value and the data corresponding with described index value, when receiving described index value more later, the data corresponding with described index value are used to replace index value, reduction initial data, the process namely decompressed.
If base station also have received indication information, described indication information carries the information of target BS; After the first base station have received index value 1 and initial data 1, also have received indication information, in described indication information, carry the information of the 3rd base station to the 8th base station.
302, time idle to the data link of the base station of in described target BS in described base station, described index value and data corresponding to described index value are sent to this base station.
After base station receives indication information, first can detect the data volume size from described base station to the data link of described target BS, when data volume on described link lower than one preset threshold value time, determine that described link is in idle condition.After determining link idle, then data syn-chronization corresponding to this index value and this index value is sent to the base station of link idle.
According to above-mentioned example, after the first base station receives indication information, understand the instruction of information as indicated, in the first base station to the 3rd base station, ... during respective link idle between the first base station to the 8th base station, send to the 3rd base station to the 8th base station index value 1 and initial data 1 presynchronization, which link idle just first presynchronization can send to the base station of link idle, need not send simultaneously.
In the embodiment of the present invention, base station reception hint value and the data corresponding with this index value, and indication information; According to this information, time idle to the data link of the base station of in described target BS in described base station, data corresponding to this index value and this buzz index value are sent to this base station.With when needing data in prior art just synchronized transmission index value compared with corresponding data, the method of the research content presynchronization that the embodiment of the present invention provides, transmission delay when can reduce busy, compression ratio when improving busy, but also can avoid causing synchrodata to be lost because link is busy.
Consult Fig. 5, an embodiment of the network equipment that the embodiment of the present invention provides comprises:
First selected cell 401, for store from self in all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value;
First confirmation unit 402, for from managed base station, confirms to have received all base stations of buzz index value that described first selected cell 401 obtains and data corresponding to described buzz index value;
First query unit 403, for each base station in all base stations for described first confirmation unit 402 confirmation, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS;
First transmitting element 404, when the data link for a base station in the target BS that inquires to described first query unit 403 at the described network equipment is idle, sends to this base station by described buzz index value and data corresponding to described buzz index value.
In the embodiment of the present invention, from all index values that self stores, choose the buzz index value that the frequency of occurrences is higher; From managed base station, confirm other base station of the same type with the base station having received this buzz index value, and when link idle, buzz index value and data corresponding to buzz index value are sent to this base station.With when needing data in prior art just synchronized transmission index value compared with corresponding data, the method of the research content presynchronization that the embodiment of the present invention provides, popular index value can be prejudged out, and the base station that this index value may be addressed to, and in advance buzz index value is sent to corresponding base station when link idle, thus transmission delay when decreasing busy, compression ratio when improving busy, but also can avoid causing synchrodata to be lost because link is busy.
Participate in Fig. 6, on the basis of embodiment corresponding to above-mentioned Fig. 5, the embodiment of the present invention provides another embodiment of the network equipment also to comprise:
First statistic unit 405, for before described first selected cell 401 chooses described buzz index value, add up the number of times that in described all index values, each index value occurs in the described network equipment, and the title of the base station that each index value is sent to described in record.
Consult Fig. 7, on the basis of the embodiment of above-mentioned Fig. 5 or 6 correspondences, the embodiment of the present invention provides another embodiment of the network equipment also to comprise:
First taxon 406, before inquiring about in described first query unit 403 the base station classification chart set up in advance, to managed all base stations, finds out the identical base station of type according to preset classifying rules;
First adding device 407, the base station name that the type for described first taxon 406 being found out is identical associates and adds in the classification chart of described base station.
Consult Fig. 8, on the basis of embodiment corresponding to Fig. 7, described first taxon 406 in the network equipment that the embodiment of the present invention provides comprises:
First statistical module 4061, for adding up the number of times that in described all index values, each index value occurs in each managed base station;
First sort module 4062, for the number of times of the same index value of appearance added up by described first statistical module 4061 more than all base stations of the second preset thresholding, is classified as the base station that type is identical.
Consult Fig. 9, on the basis of embodiment corresponding to Fig. 7, described first taxon 406 in the network equipment that the embodiment of the present invention provides comprises:
First parsing module 4063, for resolving by deep packet the keyword that DPI parses the user data of each base station;
Second sort module 4064, for the keyword that will include identical described first parsing module 4063 and parse, and the number of described identical keyword classifies as the identical base station of type more than the base station of a preset value.
Consult Figure 10, on the basis of embodiment corresponding to Fig. 5, the network equipment that the embodiment of the present invention provides also comprises:
First detecting unit 408, for detecting the data volume size from the described network equipment to the data link of described target BS;
Described first confirmation unit 402, also for when data volume on the link that described first detecting unit 408 detects lower than one preset threshold value time, determine that described link is in idle condition.
The network equipment that the multiple embodiment of the present invention provides, transmission delay when can reduce busy, compression ratio when improving busy, but also can avoid causing synchrodata to be lost because link is busy.
Consult Figure 11, the embodiment of the present invention provides another embodiment of the network equipment to comprise:
Second selected cell 411, for store from self in all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value;
Second confirmation unit 412, for from managed base station, confirms to have received all base stations of buzz index value that described second selected cell 411 obtains and data corresponding to described buzz index value;
Second query unit 413, for each base station in all base stations for described second confirmation unit 412 confirmation, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS;
Second transmitting element 414, indication information is sent at least one in all base stations to described second confirmation unit 412 confirmation, described indication information carries the information of the target BS that described second query unit 413 inquires, to make the base station receiving described indication information, time idle to the data link of the base station of in described target BS in the described base station receiving described indication information, described buzz index value and data corresponding to described buzz index value are sent to this base station.
In the embodiment of the present invention, from all index values that self stores, choose the buzz index value that the frequency of occurrences is higher; From managed base station, confirm other base station of the same type with the base station having received this buzz index value, and when link idle, buzz index value and data corresponding to buzz index value are sent to this base station.With when needing data in prior art just synchronized transmission index value compared with corresponding data, the method of the research content presynchronization that the embodiment of the present invention provides, popular index value can be prejudged out, and the base station that this index value may be addressed to, and in advance buzz index value is sent to corresponding base station when link idle, thus transmission delay when decreasing busy, compression ratio when improving busy, but also can avoid causing synchrodata to be lost because link is busy.
Consult Figure 12, on the basis of embodiment corresponding to Figure 11, the network equipment that the embodiment of the present invention provides also comprises:
Second statistic unit 415, for before described second selected cell 411 chooses described buzz index value, add up the number of times that in described all index values, each index value occurs in the described network equipment, and the title of the base station that each index value is sent to described in record.
Consult Figure 13, on the basis of embodiment corresponding to Figure 11 or Figure 12, the network equipment that the embodiment of the present invention provides also comprises:
Second taxon 416, before inquiring about in described second query unit 413 the base station classification chart set up in advance, to managed all base stations, finds out the identical base station of type according to preset classifying rules;
Second adding device 417, the base station name that the type for described second taxon 416 being found out is identical associates and adds in the classification chart of described base station.
On the basis of embodiment corresponding to Figure 13, the network equipment that the embodiment of the present invention provides also comprises: described second taxon 416 comprises:
Second statistical module, for adding up the number of times that in described all index values, each index value occurs in each managed base station;
3rd sort module, for the number of times of the same index value of appearance by described second statistical module counts more than all base stations of the second preset thresholding, is classified as the base station that type is identical.
On the basis of embodiment corresponding to Figure 13, the network equipment that the embodiment of the present invention provides also comprises: described second taxon 416 comprises:
Second parsing module, for resolving by deep packet the keyword that DPI parses the user data of each base station;
4th sort module, for the keyword that will include identical described second parsing module and parse, and the number of described identical keyword classifies as the identical base station of type more than the base station of a preset value.
The network equipment that the multiple embodiment of the present invention provides, transmission delay when can reduce busy, compression ratio when improving busy, but also can avoid causing synchrodata to be lost because link is busy.
Consult Figure 14, an embodiment of the base station that the embodiment of the present invention provides comprises:
Receiving element 501, for receiving index value for research content and the data corresponding with described index value, and indication information, described indication information carries the information of described target BS;
3rd transmitting element 502, for time idle to the data link of the base station of in described target BS in described base station, the index value receive described receiving element 501 and data corresponding to described index value send to this base station.
In the embodiment of the present invention, receiving element reception hint value and the data corresponding with described index value, and indication information, described indication information carries the information of described target BS; When 3rd transmitting element is idle to the data link of the base station of in described target BS in described base station, the index value received by receiving element and data corresponding to described index value send to this base station, thus transmission delay when can reduce busy, compression ratio when improving busy, and can avoid causing synchrodata to be lost because link is busy.
Consult Figure 15, another embodiment of the base station that the embodiment of the present invention provides also comprises:
Second detecting unit 503, for detecting the data volume size from described base station to the data link of described target BS;
Determining unit 504, for detect when described second detecting unit 503 data volume on described link lower than one preset threshold value time, determine that described link is in idle condition.
Consult Figure 16 A, an embodiment of the system that the embodiment of the present invention provides comprises the network equipment 40 and base station 50, wherein,
The network equipment 40, for the network equipment from self store for all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value; From managed base station, confirm all base stations having received described buzz index value and data corresponding to described buzz index value; For each base station in described all base stations, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS; When the described network equipment is idle to the data link of the base station of in described target BS, described buzz index value and data corresponding to described buzz index value are sent to this base station.
Base station 50, for receiving the buzz index value of network equipment transmission and the data corresponding with described buzz index value, and buzz index value described in corresponding stored and the data corresponding with described buzz index value, decompress when again receiving described buzz index value.
Consult Figure 16 B, another embodiment of the system that the embodiment of the present invention provides comprises the network equipment 40 and base station 50, wherein,
The network equipment 40, for the network equipment from self store for all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value; From managed base station, confirm all base stations having received described buzz index value and data corresponding to described buzz index value; For each base station in described all base stations, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS; Indication information is sent at least one in described all base stations, described indication information carries the information of described target BS, to make the base station receiving described indication information, time idle to the data link of the base station of in described target BS in the described base station receiving described indication information, described buzz index value and data corresponding to described buzz index value are sent to this base station.
Base station 50, for receiving buzz index value and the data corresponding with described buzz index value;
In another embodiment, base station 50, also for receiving indication information, described indication information carries the information of described target BS; Time idle to the data link of the base station of in described target BS in described base station, described buzz index value and data corresponding to described buzz index value are sent to this base station.
It should be noted that the mode that execution mode disclosed in this invention is not limited only to embodiment and lists, for other communication systems, as wired communication system, when adopting content coding technology to carry out data compression, if there is scene demand similar in background of the present invention, then the present invention program also can be adopted to carry out presynchronization during data compression, reduce the propagation delay time in link busy moment, avoid link congestion, improve the compression ratio in link busy moment.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is that the hardware that can carry out instruction relevant by program has come, this program can be stored in a computer-readable recording medium, and storage medium can comprise: ROM, RAM, disk or CD etc.
Above the method for the research content presynchronization that the embodiment of the present invention provides and equipment and system are described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (28)
1. a method for research content presynchronization, is characterized in that, comprising:
The network equipment from self store for all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value;
From managed base station, confirm all base stations having received described buzz index value and data corresponding to described buzz index value;
For each base station in described all base stations, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS;
When the described network equipment is idle to the data link of the base station of in described target BS, described buzz index value and data corresponding to described buzz index value are sent to this base station.
2. method according to claim 1, is characterized in that, described in choose the number of times that the repeats index value more than the first preset thresholding as before buzz index value, also comprise:
Add up the number of times that in described all index values, each index value occurs in the described network equipment, and the title of the base station that each index value is sent to described in record.
3. method according to claim 1 and 2, is characterized in that, before the base station classification chart set up in advance is inquired about in described inquiry, also comprises:
To managed all base stations, find out the identical base station of type according to preset classifying rules;
Base station name identical for described type is associated and adds in the classification chart of described base station.
4. method according to claim 3, is characterized in that, describedly finds out the identical base station of type according to preset classifying rules, specifically comprises:
Add up the number of times that in described all index values, each index value occurs in each managed base station;
To occur that the number of times of same index value is more than all base stations of the second preset thresholding, is classified as the base station that type is identical.
5. method according to claim 3, is characterized in that, describedly finds out the identical base station of type according to preset classifying rules, specifically comprises:
The keyword that DPI parses the user data of each base station is resolved by deep packet;
Identical keyword will be included, and the number of described identical keyword classifies as the identical base station of type more than the base station of a preset value.
6. method according to claim 1, it is characterized in that, described when the described network equipment is idle to the data link of a base station in other base stations described, before described buzz index value and data corresponding to described buzz index value are sent to this base station, also comprise:
Detect from the described network equipment to the data volume size of the data link of described target BS;
When data volume on described link lower than one preset threshold value time, determine that described link is in idle condition.
7. a method for research content presynchronization, is characterized in that, comprising:
The network equipment from self store for all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value;
From managed base station, confirm all base stations having received described buzz index value and data corresponding to described buzz index value;
For each base station in described all base stations, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS;
Indication information is sent at least one in described all base stations, described indication information carries the information of described target BS, to make the base station receiving described indication information, time idle to the data link of the base station of in described target BS in the described base station receiving described indication information, described buzz index value and data corresponding to described buzz index value are sent to this base station.
8. method according to claim 7, is characterized in that, described in choose the number of times that the repeats index value more than the first preset thresholding as before buzz index value, also comprise:
Add up the number of times that in described all index values, each index value occurs in the described network equipment, and the title of the base station that each index value is sent to described in record.
9. the method according to claim 7 or 8, is characterized in that, before the base station classification chart set up in advance is inquired about in described inquiry, also comprises:
To managed all base stations, find out the identical base station of type according to preset classifying rules;
Base station name identical for described type is associated and adds in the classification chart of described base station.
10. method according to claim 9, is characterized in that, describedly finds out the identical base station of type according to preset classifying rules, specifically comprises:
Add up the number of times that in described all index values, each index value occurs in each managed base station;
To occur that the number of times of same index value is more than all base stations of the second preset thresholding, is classified as the base station that type is identical.
11. methods according to claim 9, is characterized in that, describedly find out the identical base station of type according to preset classifying rules, specifically comprise:
The keyword that DPI goes out the user data of each base station is resolved by deep packet;
Identical keyword will be included, and the number of described identical keyword classifies as the identical base station of type more than the base station of a preset value.
The method of 12. 1 kinds of research content presynchronization, is characterized in that, comprising:
Base station receives the index value and the data corresponding with described index value that are used for research content, and indication information, described indication information carries the information of target BS, described target BS is determined by the network equipment, determine that the process of target BS is: the described network equipment from self store for all index values of research content, select the number of times that the repeats buzz index value more than the first preset thresholding; From managed base station, confirm to have received other base stations that the base station of described buzz index value and data corresponding to described buzz index value is of the same type, will other base stations of described buzz index value and data corresponding to described buzz index value do not received as target BS;
Time idle to the data link of the base station of in described target BS in described base station, described index value and data corresponding to described index value are sent to this base station.
13. methods according to claim 12, is characterized in that, described idle to the data link of the base station of in described target BS in described base station time, before described index value and data corresponding to described index value are sent to this base station, also comprise:
Detect from described base station to the data volume size of the data link of described target BS, when data volume on described link lower than one preset threshold value time, determine that described link is in idle condition.
14. 1 kinds of network equipments, is characterized in that, comprising:
First selected cell, for store from self in all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value;
First confirmation unit, for from managed base station, confirms to have received all base stations of buzz index value that described first selected cell obtains and data corresponding to described buzz index value;
First query unit, for each base station in all base stations for described first confirmation unit confirmation, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS;
First transmitting element, when the data link for a base station in the target BS that inquires to described first query unit at the described network equipment is idle, sends to this base station by described buzz index value and data corresponding to described buzz index value.
15. network equipments according to claim 14, is characterized in that, also comprise:
First statistic unit, for before described first selected cell chooses described buzz index value, adds up the number of times that in described all index values, each index value occurs in the described network equipment, and the title of the base station that each index value is sent to described in record.
16. network equipments according to claims 14 or 15, is characterized in that, also comprise:
First taxon, before inquiring about in described first query unit the base station classification chart set up in advance, to managed all base stations, finds out the identical base station of type according to preset classifying rules;
First adding device, the base station name that the type for described first taxon being found out is identical associates and adds in the classification chart of described base station.
17. network equipments according to claim 16, is characterized in that, described first taxon comprises:
First statistical module, for adding up the number of times that in described all index values, each index value occurs in each managed base station;
First sort module, for the number of times of the same index value of appearance by described first statistical module counts more than all base stations of the second preset thresholding, is classified as the base station that type is identical.
18. network equipments according to claim 16, is characterized in that, described first taxon comprises:
First parsing module, for resolving by deep packet the keyword that DPI parses the user data of each base station;
Second sort module, for the keyword that will include identical described first parsing module and parse, and the number of described identical keyword classifies as the identical base station of type more than the base station of a preset value.
19. network equipments according to claim 14, is characterized in that, also comprise:
First detecting unit, for detecting the data volume size from the described network equipment to the data link of described target BS;
Described first confirmation unit, also for when data volume on the link that described first detecting unit detects lower than one preset threshold value time, determine that described link is in idle condition.
20. 1 kinds of network equipments, is characterized in that, comprising:
Second selected cell, for store from self in all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value;
Second confirmation unit, for from managed base station, confirms to have received all base stations of buzz index value that described second selected cell obtains and data corresponding to described buzz index value;
Second query unit, for each base station in all base stations for described second confirmation unit confirmation, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS;
Second transmitting element, indication information is sent at least one in all base stations to described second confirmation unit confirmation, described indication information carries the information of the target BS that described second query unit inquires, to make the base station receiving described indication information, time idle to the data link of the base station of in described target BS in the described base station receiving described indication information, described buzz index value and data corresponding to described buzz index value are sent to this base station.
21. network equipments according to claim 20, is characterized in that, also comprise:
Second statistic unit, for before described second selected cell chooses described buzz index value, adds up the number of times that in described all index values, each index value occurs in the described network equipment, and the title of the base station that each index value is sent to described in record.
22. network equipments according to claim 20 or 21, is characterized in that, also comprise:
Second taxon, before inquiring about in described second query unit the base station classification chart set up in advance, to managed all base stations, finds out the identical base station of type according to preset classifying rules;
Second adding device, the base station name that the type for described second taxon being found out is identical associates and adds in the classification chart of described base station.
23. network equipments according to claim 22, is characterized in that, described second taxon comprises:
Second statistical module, for adding up the number of times that in described all index values, each index value occurs in each managed base station;
3rd sort module, for the number of times of the same index value of appearance by described second statistical module counts more than all base stations of the second preset thresholding, is classified as the base station that type is identical.
24. network equipments according to claim 22, is characterized in that, described second taxon comprises:
Second parsing module, for resolving by deep packet the keyword that DPI parses the user data of each base station;
4th sort module, for the keyword that will include identical described second parsing module and parse, and the number of described identical keyword classifies as the identical base station of type more than the base station of a preset value.
25. 1 kinds of base stations, is characterized in that, comprising:
Receiving element, for receiving index value for research content and the data corresponding with described index value, and indication information, described indication information carries the information of target BS, described target BS is determined by the network equipment, determine that the process of target BS is: the described network equipment from self store for all index values of research content, select the number of times that the repeats buzz index value more than the first preset thresholding; From managed base station, confirm to have received other base stations that the base station of described buzz index value and data corresponding to described buzz index value is of the same type, will other base stations of described buzz index value and data corresponding to described buzz index value do not received as target BS;
3rd transmitting element, for time idle to the data link of the base station of in described target BS in described base station, the index value receive described receiving element and data corresponding to described index value send to this base station.
26. base stations according to claim 25, is characterized in that, also comprise:
Second detecting unit, for detecting the data volume size from described base station to the data link of described target BS;
Determining unit, for detect when described second detecting unit data volume on described link lower than one preset threshold value time, determine that described link is in idle condition.
27. 1 kinds of research content presynchronization systems, it is characterized in that, comprise: the network equipment and at least one base station, the described network equipment is used for, from self store for all index values of research content, choose the number of times that the repeats index value more than the first preset thresholding as buzz index value; From at least one base station described, confirm to have received all base stations of buzz index value that the first selected cell obtains and data corresponding to described buzz index value; For each base station in described all base stations, inquire about the base station classification chart set up in advance, determine other base stations of the same type with each base station described, and choose from other base stations described also do not receive described buzz index value and data corresponding to described buzz index value base station as target BS; When the data link of a base station in the target BS that the described network equipment inquires to the first query unit is idle, described buzz index value and data corresponding to described buzz index value are sent to this base station;
Described base station, the data that buzz index value and described buzz index value for receiving the transmission of the described network equipment are corresponding.
28. systems according to claim 27, it is characterized in that, the described network equipment also for, before inquiring about the base station classification chart set up in advance, to managed all base stations, find out the identical base station of type according to preset classifying rules, and base station name identical for described type is associated and adds in the classification chart of described base station.
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| US14/463,131 US9602632B2 (en) | 2012-02-20 | 2014-08-19 | Content encoding pre-synchronization method, device and system |
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| CN105208596A (en) * | 2014-06-17 | 2015-12-30 | 中兴通讯股份有限公司 | Header compression method, decompression method and device |
| CN105637935B (en) | 2014-07-10 | 2019-09-20 | 华为技术有限公司 | A kind of transmission method of data, system and relevant apparatus |
| US10560868B2 (en) * | 2014-08-21 | 2020-02-11 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Terminal-aided backhaul compression |
| CN107104813B (en) * | 2016-02-23 | 2020-08-07 | 华为技术有限公司 | Information transmission method, gateway and controller |
| CN113159145A (en) * | 2018-04-28 | 2021-07-23 | 华为技术有限公司 | Characteristic engineering arrangement method and device |
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| EP2819335A1 (en) | 2014-12-31 |
| EP2819335B1 (en) | 2017-01-11 |
| EP2819335A4 (en) | 2015-04-08 |
| US9602632B2 (en) | 2017-03-21 |
| CN103260187A (en) | 2013-08-21 |
| US20150003476A1 (en) | 2015-01-01 |
| WO2013123733A1 (en) | 2013-08-29 |
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